参数资料
型号: M28W800C-ZBT
厂商: 意法半导体
英文描述: 8 Mbit 512Kb x16, Boot Block 3V Supply Flash Memory
中文描述: 8兆位512KB的x16插槽,启动块3V电源快闪记忆体
文件页数: 17/49页
文件大小: 369K
代理商: M28W800C-ZBT
17/49
M28W800CT, M28W800CB
Table 8. Block Lock Status
Table 9. Protection Status
Note: 1. The protection status is defined by the write protect pin and by DQ1 (‘1’ for a locked-down block) and DQ0 (‘1’ for a locked block)
as read in the Read Electronic Signature command with A1 = V
IH
and A0 = V
IL
.
2. All blocks are locked at power-up, so the default configuration is 001 or 101 according to WP status.
3. A WP transition to V
IH
on a locked block will restore the previous DQ0 value, giving a 111 or 110.
Item
Address
Data
Block Lock Configuration
xx002
LOCK
Block is Unlocked
DQ0=0
Block is Locked
DQ0=1
Block is Locked-Down
DQ1=1
Current
Protection Status
(1)
(WP, DQ1, DQ0)
Next Protection Status
(1)
(WP, DQ1, DQ0)
Current State
Program/Erase
Allowed
After
Block Lock
Command
After
Block Unlock
Command
After Block
Lock-Down
Command
After
WP transition
1,0,0
yes
1,0,1
1,0,0
1,1,1
0,0,0
1,0,1
(2)
no
1,0,1
1,0,0
1,1,1
0,0,1
1,1,0
yes
1,1,1
1,1,0
1,1,1
0,1,1
1,1,1
no
1,1,1
1,1,0
1,1,1
0,1,1
0,0,0
yes
0,0,1
0,0,0
0,1,1
1,0,0
0,0,1
(2)
no
0,0,1
0,0,0
0,1,1
1,0,1
0,1,1
no
0,1,1
0,1,1
0,1,1
1,1,1 or 1,1,0
(3)
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